diff --git a/Lib/test/test_collections.py b/Lib/test/test_collections.py
index c9b7f6b6bf7..88c3129d7ff 100644
--- a/Lib/test/test_collections.py
+++ b/Lib/test/test_collections.py
@@ -974,7 +974,7 @@ def test_repr_nonsortable(self):
         r = repr(c)
         self.assertIn("'a': 2", r)
         self.assertIn("'b': None", r)
-    
+
     def test_helper_function(self):
         # two paths, one for real dicts and one for other mappings
         elems = list('abracadabra')